变电站作为我国电力事业建设的关键，最大程度缓解了我国用电紧张的问题，对我国电力事业的发展有着不可或缺的意义。数字化变电站是实现电网自动化、智能化运行的重要环节，其拥有诸多特点，因此数字化变电站继电保护是我国未来电力系统发展的大势所趋。%As a key to the construction of electric power industry in China, substation greatly eases the problem of electric power shortage. It has indispensable significance of the development of the power industry. Digital substation is an important link of implementing the automatic and intelligent power grid operation. It has many characteristics. So the relay protection of the digital substation is the trend of the development of the power system in China.
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